🔧Chiller - Evaporators
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- Опубликовано: 5 июн 2024
- In this video we look inside the evaporator of a chiller to learn how it works and how it operates in a HVAC system. We use 3D models, animations and real life photos to help you understand and learn HVAC engineering.
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The Engineering Mindset excellence explanation and presentation, I’m a HVAC technician in NYC, it’s always nice to see/hear someone who knows what they’re talking about.
ខ្ញុំចងចេះ
Excellent explanation!!! And nice visuals!
help ifwggzG@@BLAZENYCBLACKOPSI can
One year ago,I worked in Production Department,which requires me to deal with Production Output everyday and it was kinda boring for me.
From then,I found your channel, studied on HVAC system and make your video as my primary reference regarding Chiller operation.Now I've become a Facility guy in another Company thanks to your wonderful videos.
Please keep producing videos like this. Your videos help me to change my life.
Glad to hear we helped you
love you engg mindset. Your videos are like spoonfeeding..so simple..so easy to understand !
Thank you for this video my presentation on chillers is becoming more easier after understanding how the chillers work
Very well presented and explained. I understood some things I didn't understand for years. Much appreciated
You are the best, you've helped me more than this trade school I just finished. LOL and your videos are straight to the point, short and visual. LOVE THEM! thank you!!!!!!!!!!!!
Your videos are well-done and have helped me learn the basics of refrigeration and chillers. Do you have any plans for a video about air-cooled chillers?
I am currently working in Dubai and doing condition survey on buildings, till now i haven’t worked with chillers, but only district cooling system, ur videos helped me a lot to get clear pictures
Thanks brother it feels like real industrial visit, you have great sense to make people understand
Videos are great visuals are very educational. just started going to school for refrigeration machine operator engineer (NYC) and your videos put images to all the book words
Thanks a lot keep'em coming
Glad you enjoyed. There's the old saying a picture is worth a thousand words.
I loved your presentation very much
Very clear and simple explanation with examples that you can see. Super!
Your videos are extremely well done. Thank you.
Deeply enjoyed this.
Learn how CONDENSERS WORK here: ruclips.net/video/p5uuPsyqnwU/видео.html
Thanks for these detailed videos . I tried to check other videos on RUclips for this type of explanation but with no succ. Thank you again . Pleas add more videos your subscribers are waitting .
salehhamid thanks for your support, glad it helped you! hit subscribe to get our updates, plenty more videos coming!
Great explanation. Kindly do a video on screw compressor solenoid loader/unloader for capacity control.
you are the Master in hvac sir
Please make a video about UV-C Lamps on AHU. Thanks for very informative videos! Keep posting.
thanks for making these amazing videos full of information and explanation
Your videos are very good, Thanks a for presentation
your all video explained and presentation excellent.. many many thanks....
Thanks Damith!
Thank u for making these kind of videos .
very well presentation, and very very use full. thankyou
your video is very well Explanations Refrigerant system chilled water chiller plant thank you so much sir
Subscribed! Beautifully and very clearly explained! 👍🏻👍🏻👍🏻
Just one question. How are residual oils or lubricants that accompany refrigerants removed or recovered from the shell? 🤔
Awesome educational video. Thank you
Thank you for the video. Does refrigerant enter the evaporator as liquid or a mix of liquid and vapor?
Great video !
Thanks for the video. For the plugged pipes, how would you identify which tubes are leaking water to the refrigerant, especially if it’s a smaller leak?
You test the tubes and if it can't hold pressure then it has a hole
Thanks for such a brilliant presentation.I have Some questions How refrigerant absorb all the heat ? Which thing is in the evaporator that made the refrigerant to suck all the heat from chilled water?
As the tube contain the water and refrigerant is all around the pipe how come the absorb heat did not affect again to the pipes?
Hi Waleed, The refrigerant has very low boiling point and when it evaporates it takes some of this heat with it, much like it you boil a pan of water, the water evaporates and will carry the heat away as steam. The only thing that makes the refrigerant "suck away" the heat is the temperature difference and specific heat capacity. Hot always moves to cold.
Excellent teaching
Thank you very much
Hi love your videos is this a flooded evap can you do a video explaining this. Also I might be wrong did you not say in this video you had a return and feed temp both at 12c?
Thanks
You making very good job. Maybe thanks to your videos I will gonna have better job.. :) For studying 5 years as some ingenieur it's too late for me;)
Hey Paul, your videos are so good... have helped me learn so much as an engineer. Are you thinking of going a domestic / drainage public health series?
Hey, glad you enjoy and find them useful. There's really no limit to what we'll cover, currently focusing on HVAC and electrical.
Your video is great. Thank you
thank you brother for good information video and again thank
good explanation
Very useful video,,water entering in the condenser is from the cooling tower,how about water entering to the evaporator?thanks
the ahu's and fcu's.
please watch our video on chiller basics
Thanks a for presentation.may I ask you for the types of refrigerant used in these types of chiller units,and their properties, especially boiling point of refrigerant.
R134a is used on many chillers, check the website of manufactures such as Trane and Daikin Applied. You can find the data for the refrigerants by googling "R134a properties"
we use R717 and had a few leaks due to shit maintenance lol
If you can make video for Ammonia chillers
Thanks a lot, paul
well done very well done comma I have a question. In a chiller with with refrigerant 123 is it possible that air in the system will also cause a surge.?
HVince AC yes it could lead to surge. if the refrigerant level was low also or if non compressible fluids entered the compressor.
The Engineering Mindset
thanks for the reply.
Great video! You say that chilled water enters the evaporator, but I thought the water in it would come from the terminals in the building, i.e. it would be water carrying heat collected from the ambient. How does that work?
Yes chilled water enters the return side of evaporator from a terminal and leaves chilled on the supply side of evaporator to a terminal.
Heat is transfered through refrigerant to condensing barrel.
I love your presentation. Well done. If I may ask, what are the likely causes of suction pressure fault in a chiller?
Thanks.
Hi Samuel, there could be many reasons. Probably there is a blockage, over/under charged with ref gas, wrong gas, low detla T, broken sensor. It would be best to bring in a service specialist. If you do, make sure you see what they do and ask lots of questions to learn.
We just covered chiller faults in our recent video! ruclips.net/video/Zu0LVVNNVSw/видео.html
Great channel!
thanks a lot for information
Pls explain loading and unloading process of chillers
If the expel its heat in the pipe, would it possible that there can be moist in the evap pipe that possibly be mixed in the refrigerant?
What a great content
Have you done a video about the operation of different types of Evap, Flooded, Spray Flooded, Plate etc?
Flooded and plate yes. We also have the chiller terminology video which is a gold mine of info.
Thank-you soooo much god bless you
Thank you
According to animation in this video evaparator is shown at bottom but in your 3d drawing it was located at top part of chiller and bottom as condenser right?
its going to vary by manufacturer. It's typically found at the bottom through.
I'm a bit confused you are pointing to evaporator in the diagram at 1:03 located on the bottom looks like the Condenser is moving fluids into the AHU.
Thanks for your video, I have one doubt how does Liquid Refrigerant move towards the evaporator at a higher level, what's the driving force to move to higher elevation.
Pressure
@@EngineeringMindset U mean the pressure from Compressore
Is it safe to cut into an abandoned Chiller to remove the copper tubing with a set of cutting torches? Is there flammable gases inside the chiller? Thank you
greT sir
অনেক ধন্যবাদ ভাই
Thanks!
Thank you!
Hi, what caused the existing ice flakes from evaporator sight glass ?
thaks!
Can we use mixture of water and glycol?
Can u explain 3d video how the process will run our in evaporator
sir please make a documentary on one famous project hotel or hospital for how hvac system work with proper amount of heat calculation.
sir this might be very useful who can't afford
We have some coming. It's very difficult to get permission though. Many companies do not want their data published
good idea...
Great
5:30 I think you meant 'the chilled water leaves the evaporator at 6 degrees celsius'
Well spotted. Thank you. Yes it should enter at ~12*c and leave at ~6*c depending on the setpoints.
Are there any compressors and cooling towers used in ice rink to make ice
Good
I have a question. Within the evaporator there is gas and liquid. Gradually the amount of liquid will full the evaporator, so how could to maintenance the amount of liquid in the evaporator? Thank you.
Bravissimo
Would u tell me what deference benefits between one, two and three pass?
More paases means more heat exchange as larger surface area. That also makes it shorter in length although larger in diameter. More chance for the heat to be full utilised.
thanks for the reply
REQUEST
I found this video is very useful. But i cant catch up with some words.
I mean u could add a lyrics along with videos or somewhere else That will be brilliant.
All Nationality with understanding in fully way.
Every video has subtitles, you just need to turn them on. Some are auto made by google so they are not perfect, others have been translated.
Pretty sure the rusty water is coming from these tubes in the Evaporator. Suggestions for cleaning?
Hai sir how to identify is a fins or not outside of tubes
Well done! Now if I can get my junior engineers to stop playing with their bloody iphones long enough to learn how 'our' chiller system works, it will be a good day. How they passed thermo and heat transfer is beyond me.
i have seen lot of videos of refrigerant but i have never seen R22 or R410A as refrigerant in HVAC. is there any other reason beyond economically?
These are being phased out now due to their environmental issues. You might like these videos
Refrigerant types and future: ruclips.net/video/J77a0keM2Yk/видео.html
How refrigerants work: ruclips.net/video/lMqoKLli0Y4/видео.html
Refrigerant retrofit guide: ruclips.net/video/1OqgLcU2buQ/видео.html
at 9:15 you said "chilled water entering into the evaporator.." but correct me if iam wrong, actually the hot water is entering into the evaporator from AHU and gives up the heat to cold refrigerant and get cooled ans leaves it as cold water. So HOT WATER IN and COLD WATER OUT. Right ?
Ajith Khan correct, but the water in that loop is referred to as the chilled water loop regardless of temperature.
Thanks professor.
I have confused let me know, chilled water flow in tube or shell of evaporator??
@@hbk775 chilled water flow inside the tube
🤝 sir
What about the difference between direct expansion evaporator and flooded evaporator ?
Direct expansion that meaning liquid refrigerant entering to the evaporator tube( fin and tube type) .indirect expansion that is liquid refrigerant entering the heat exchanger (chiller)tube side is refrigerant shell side is water
Types of evaporator for one is shell and tube another one was
You must mention that it is a "water-cooled" chiller , because i was interested in "air-cooled" chiller too.
Watch this ruclips.net/video/Ic5a9E2ykjo/видео.html
Please let me get lost already. Does the device used in water/gas (cooler controller type R32, etc.) or water/water and water devices have water or gas flowing in the evaporator? Greetings from Poland
I can't imagine the pressure reliefs for the refrigerant would just vent to the atmosphere, that would be completely against the law over here in North America. At the very least, it would have to vent into some sort of a sealed tank/cylinder.
👍
Wait I thought the refrigerant was in the copper pipes and not the water.
If water comes in the evaporator at 12°c how can it leave at 12°c?
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Evaporator what is work in plant?
you fool still you Don know basics
I need one help from your side I need the sub tittle for chiller because I am not able to catch your slang pls help me
Auto generated subtitles are available on all video, just click the cc button in the video player. Additionally, you can read the article on our website for the topic.
@@EngineeringMindset thanks
Can you explain the viedoe for calorifiers
I am manufacturing chiller and cooling tower.
Good